[gstreamer-bugs] [Bug 614353] New: matroskademux: can't correctly demux flac-in-MKV

GStreamer (bugzilla.gnome.org) bugzilla at gnome.org
Tue Mar 30 05:30:08 PDT 2010


https://bugzilla.gnome.org/show_bug.cgi?id=614353
  GStreamer | gst-plugins-good | 0.10.21

           Summary: matroskademux: can't correctly demux flac-in-MKV
    Classification: Desktop
           Product: GStreamer
           Version: 0.10.21
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: Normal
         Component: gst-plugins-good
        AssignedTo: gstreamer-bugs at lists.sourceforge.net
        ReportedBy: cwryu at debian.org
         QAContact: gstreamer-bugs at lists.sourceforge.net
      GNOME target: ---
     GNOME version: ---


flac-in-MKV files can't be played correctly.  All such files seem to have the
same problem. An example file can be easily generated using flacenc and
matroskamux:

$ gst-launch audiotestsrc freq=4000 ! flacenc ! matroskamux ! filesink
location=a.mkv

After recording for a few seconds,

$ wc -c a.mkv
59372013 a.mkv
$ gst-launch filesrc  location=a.mkv ! matroskademux ! flacdec ! audioconvert !
alsasink
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
Got EOS from element "pipeline0".
Execution ended after 52340 ns.
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
Setting pipeline to NULL ...
Freeing pipeline ...
$

It just got EOS immediately. It can be played in other non-gstreamer players.

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